So this was long time ago but I already solved this issue. The following steps are the process on how I fix it:
- I downloaded and installed the cpp rest.
- Go to the project properties and in the Build Events > Post-Build Event, I included a commands which copies the cpp rest lib from the installed folder to the project folder/destination where you include your libraries in your project.
So basically, the cpp rest file is missing that's why my program is having an issue.
I hope this helps and message me if you have any questions. :)